Thin-gauge 1180MPa-grade dual-phase steel and processing method thereof

A processing method and dual-phase steel technology, applied in the field of steel rolling, can solve problems such as high energy consumption in the production process, high alloy cost, and long manufacturing process, and achieve the effects of shortening the manufacturing process, reducing production costs, and improving strength and toughness

Inactive Publication Date: 2018-04-13
武汉钢铁有限公司
View PDF3 Cites 13 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Traditional advanced high-strength steel for automobiles, especially advanced high-strength steel with a thickness of less than 1.5mm, adopts a hot-rolled + cold-rolled manufacturing process, which has a long manufacturing process, complicated procedures, and high energy consumption. challenge
At present, most of the 1180MPa dual-ph

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Thin-gauge 1180MPa-grade dual-phase steel and processing method thereof
  • Thin-gauge 1180MPa-grade dual-phase steel and processing method thereof
  • Thin-gauge 1180MPa-grade dual-phase steel and processing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0026] The embodiment of the present application provides a thin-gauge 1180MPa dual-phase steel and its processing method. The thin-gauge dual-phase steel with a thickness of 1.0-3.0mm is produced by the thin slab continuous casting and rolling process, which reduces the production cost and has excellent comprehensive performance. mechanical properties.

[0027] The technical solution of the present application will be described in detail below through the accompanying drawings and specific embodiments. It should be understood that the embodiments of the present application and the specific features in the embodiments are detailed descriptions of the technical solution of the present application, rather than limitations on the technical solution of the present application. In the case of no conflict, the embodiments of the present application and the technical features in the embodiments may be combined with each other.

[0028] The term "and / or" in this article is just an ass...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses thin-gauge 1180MPa-grade dual-phase steel and a processing method thereof, and belongs to the technical field of steel rolling. The dual-phase steel comprises the following components in percentage by mass: 0.19%-0.23% of C, 0.10%-0.50% of Si, 0.60%-1.00% of Mn, not greater than 0.015% of P, not greater than 0.004% of S, 0.30%-0.70% of Cr, 0.020%-0.060% of Als, and the balance Fe and inevitable impurities. The dual-phase steel is produced through a continuous casting and rolling process for a sheet billet, and the processing method comprises the processes of smelting, refining, continuous casting and rolling for a sheet billet, cooling, coiling and leveling; and batch stable manufacturing for the thin-gauge 1180MPa-grade dual-phase steel with a thickness of 1.0-3.0mm is finally achieved, the production cost is lowered, and moreover, excellent comprehensive mechanical property is achieved, and the thin-gauge 1180MPa-grade dual-phase steel is capable of replacingcold-rolled dual-phase steel for manufacturing a vehicle body structural member of a passenger vehicle.

Description

technical field [0001] The invention relates to the technical field of steel rolling, in particular to a thin-gauge 1180MPa dual-phase steel and a processing method thereof. Background technique [0002] In recent years, my country's automobile industry has continued to develop at a high speed, which has had a huge impact on social energy supply and environmental protection. In order to cope with the pressure of environmental protection, the state has promulgated a series of programmatic documents, clearly pointing out that my country's manufacturing industry should accelerate the pace of transformation of green manufacturing and ecological development. Existing research shows that lightweight is the most effective measure to achieve energy saving and emission reduction of automobiles, and high strengthening of steel materials is an important technical path to realize lightweight automobiles. Greening and high performance have become the development trend of steel materials...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): C22C38/18C22C38/02C22C38/04C22C38/06C22C33/04C21D8/02
CPCC22C38/18C21D8/0247C21D2211/005C21D2211/008C22C33/04C22C38/02C22C38/04C22C38/06
Inventor 刘斌毛新平杜秀峰徐进桥薛欢刘永前魏兵段小平刘洋刘渊媛
Owner 武汉钢铁有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products